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Finding the Third Proportional to 56.88 and 73.75

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Solution

The third proportional to 56.88 and 73.75 is: 95.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56.88 : 73.75 = 73.75 : x
  2. Step 2: Convert to fraction form
    56.88/73.75 = 73.75/x
  3. Step 3: Cross multiply
    56.88x = 73.75 × 73.75
  4. Step 4: Simplify right side
    56.88x = 5,439.06
  5. Step 5: Solve for x
    x = 5,439.06/56.88
  6. Step 6: Final answer
    x = 95.63

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.